Tata Sky — Complained No signal issue but not singal reply from you

My tatasky sub. id is [protected] From 25 days there is signal issue, i complained 4-5 times but every time got same answer that all roots are busy they will call you back but they didn't call. First time when i submit my no signal complaint they told me that their technician will visit within 4 hours and now almost 25days passed they didn't call also. when my subscription is devactivated at that time custemer care call repetatedly for recharging the tatasky...but now i suffer problem they didn't give singal reply... This is the worst service what i am getting from last 25 days...i request you to solve this problem as early as possible otherwise we are not use your tata sky service.